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Researchers publish blueprint to fuse wireless technologies and AI
There's a major difference between humans and current artificial intelligence (AI) capabilities: common sense. According to a new paper by Walid Saad, professor in the College of Engineering and the Next-G Wireless Lead at the Virginia Tech Innovation Campus, a true revolution in wireless technologies is only possible through endowing... Read more
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A tiny component for record-breaking bandwidth: New modulator breaks the terahertz mark
Plasmonic modulators are tiny components that convert electrical signals into optical signals in order to transport them through optical fibers. A modulator of this kind had never managed to transmit data at a frequency of over a terahertz (over a trillion oscillations per second).... Read more
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Ultra-broadband photonic chip boosts optical signals to reshape high-speed data transmission
Modern communication networks rely on optical signals to transfer vast amounts of data. But just like a weak radio signal, these optical signals need to be amplified to travel long distances without losing information.... Read more
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High-performance programmable photonic chip could transform radar and communication systems
Researchers at the University of Twente, in collaboration with the City University of Hong Kong, have designed a cutting-edge programmable photonic chip in a thin-film lithium niobate platform, an important material in photonics. Published in Nature Communications, this work paves the way for next-generation high-performance radar and communication applications.... Read more
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Space-time-coding metasurface could transform wireless networks with dual-functionality for 6G era
Programmable metasurfaces (PMs), also sometimes referred to as reconfigurable intelligence surfaces, are smart surfaces that reflect wireless signals, but can also dynamically manipulate electromagnetic waves in real-time. These surfaces are highly advantageous for the development of many cutting-edge technologies, including advanced sensing and wireless communication systems.... Read more
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Selective jamming: Reconfigurable intelligent surfaces reveal new method of attacking Wi-Fi networks
Wireless connections are common in most households today. From your lights to your heating, everything can be connected and controlled through Wi-Fi. However, wireless technology is inherently vulnerable to the threat of jamming.... Read more
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Electromagnetic wave absorber enhances terahertz technology for future 6G networks
Sixth-generation, or 6G, cellular networks are the next step in wireless communication, and electromagnetic terahertz waves are seen as crucial to its development. However, terahertz waves, with their higher frequency and shorter wavelength, are subject to greater interference from electromagnetic noise, making clear and secure transmission a challenge.... Read more
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AI-powered method improves reliability of next-generation networks
As 5G and 6G networks expand, they promise a future of incredibly fast and reliable wireless connections. A key technology behind this is millimeter-wave (mmWave), which uses very high-frequency radio waves to transmit huge amounts of data. To make the most of mmWave, networks use large groups of antennas working... Read more
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Scientists develop ultra-thin absorbers with record-breaking bandwidth
Absorbing layers have been fundamental to advancements in technologies like energy harvesting, stealth systems, and communication networks. These absorbers efficiently capture electromagnetic waves across broad frequency ranges, enabling the development of sustainable, self-powered devices such as remote sensors and internet of things (IoT) systems.... Read more
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Programmable metasurface antenna exhibits remarkable wireless information mapping efficiency
In recent years, electronics engineers worldwide have been trying to develop new hardware that could further boost the speed and efficiency of wireless communications. Digitally programmable metasurfaces, advanced artificial materials engineered to manipulate the properties of electromagnetic waves, have been found to be particularly promising for the transmission of wireless... Read more
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Low-cost system eliminates need for power-hungry signal transmitters in industrial machine communication
Researchers have found a low-power, inexpensive way for large numbers of devices, such as machines in factories and equipment in labs, to share information by efficiently using signals at untapped high frequencies.... Read more
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Novel antenna tech enables multi-signal transmission for 6G networks
A breakthrough in antenna technology that could revolutionize the future of wireless communications, particularly for the upcoming 6th generation (6G) networks, has been announced by a research team led by Professor Chan Chi-hou, Chair Professor of the Department of Electrical Engineering at City University of Hong Kong (CityUHK).... Read more
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Prototype network achieves seamless all-light mobile communication across air, land and sea
Researchers have demonstrated a prototype mobile all-light communication network, paving the way for seamless connectivity across air, land and underwater environments—even when communication nodes are on a moving vehicle. This advance could enable uninterrupted data exchange in dynamic and challenging settings for navigation, emergency response, research and commercial operations.... Read more
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Shape-shifting antenna uses memory alloys to adapt to temperature change
By leveraging cutting-edge additive manufacturing techniques and shape memory alloys, researchers at the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, have created an antenna that can change its shape based on its temperature.... Read more
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Cross-medium eavesdropping technology overturns assumptions about underwater communications security
Researchers from Princeton and MIT have found a way to intercept underwater messages from the air, overturning long held assumptions about the security of underwater transmissions.... Read more